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| Parameter & Custom Options | |
|---|---|
| Substrates | Color glass or Customize as needed |
| CWL (Central Wavelength) | 620nm |
| FWHM | 10nm |
| Blocking Range | 200nm - 2000nm |
| Blocking Depth | OD2 - OD6 |
| Diameter (mm) | φ3mm ~ φ50mm |
| Size (mm) | 3×3 ~ 55×55 mm |
| Thickness (mm) | 0.3mm ~ 5mm |
| Surface / Coating Quality | 40/20, 60/40, 80/50 |
| Bandpass Transmittance | > 95% common |
| Edge Treatment (Selectable) | Mounted in Black Anodized Aluminum Ring |
Optolong specializes in standard and custom bandpass filters, longpass and shortpass filters, dichroic mirrors, beamsplitters, anti-reflective coatings, astronomical filters, and fluorescence filter sets.
Yes, full customization is supported. Substrates include K9, BK7, B270, D263T, JGS1, Fused Silica, Float Glass, and Color Glass. Sizes range from 3×3mm up to 55×55mm or round diameters from φ3mm to φ50mm, with thicknesses between 0.3mm and 5mm.
Optolong utilizes advanced Ion-Assisted Deposition (IAD) hard coating technology with precision vacuum coating machines to provide durable optical coatings, high transmittance (>95%), and high blocking levels (OD2 to OD>6).
Our filters are widely deployed in laser systems, biochemical analysis, facial and iris recognition, license plate recognition, security surveillance cameras, infrared touchscreens, vehicle wheel alignment, and CCD digital imaging systems.
Optolong operates under an ISO9001 certified quality management system. All optical filter components are strictly compliant with international RoHS and REACH environmental directives.
Filters are packaged in ultra-clean environments with PE protective film, vacuum sealed against dust and moisture, and secured inside cushioned PP plastic boxes with high-density sponge padding before export-grade carton packaging.
